摘要
用6个不同砷浓度的营养液对水花生进行培养,结果表明：低浓度砷（〈50μmol/L）能够促进水花生的生长;高浓度砷（〉100μmol/L）使水花生的生长受到抑制,砷浓度越高水花生生长受抑制越强。水花生还具有较强的吸收砷元素的能力,在砷浓度为25～400μmol/L时植株砷吸收量随浓度增大而增加,其中茎为水花生主要吸收部位。
Six different arsenic concentrations of nutrient liquid were used to cultivate Alternanthera philoxeroides. The research results indicated that low concentration （ 〈 50μmol/L） of arsenic could promote the growth of Alternanthera philoxeroides, however, high concentration （ 〉 100μmol/L） of As inhibited the growth. In addition, Alternanthera philoxeroides could effectively absorb As el- ement within concentration range of 25 - 400 μmol/L and the absorption amount increased along with the increase of As concentration. The stem of Alternanthera philoxeroides was the main absorption part.
出处
《江西农业学报》
CAS
2008年第6期95-97,共3页
Acta Agriculturae Jiangxi
基金
福建省自然基金项目(B0610017)
福建省科技厅重大项目(2005YZ1004)
福建省农科院创新团队项目(STIF-Y01)
福建省农科院青年创新基金资助
关键词
水花生
砷
生长
影响
Alternanthera philoxeroides （ Mart. ） Griseb
Arsenic
Growth
Effect
